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Description of problem:
During my lvm2 testing of dm-writecache, I've noticed the following errors during the conversion cmd. However, it doesn't appear to cause any harm, likely just a cosmetic issue?

[root@hayes-02 ~]# grep inotify_add_watch /var/log/messages | wc -l
1598

Running cmdline: lvconvert --yes --type writecache --cachevol writecache_sanity/pooll /dev/writecache_sanity/originl

Feb 23 03:32:09 hayes-02 systemd-udevd[1157845]: inotify_add_watch(11, /dev/dm-0, 10) failed: No such file or directory


Version-Release number of selected component (if applicable):
systemd-udev-239-25.el8.x86_64

How reproducible:
Often

fix merged to github master branch -> https://github.com/systemd-rhel/rhel-8/pull/76

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Low: systemd security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2020:4553